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iwlwifi: check short GI support per-station rather than globally

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Short guard interval support is a local per-station parameter not a global
per-NIC parameter.  (mac80211 will correctly remove SGI support from station
capabilities if the BSS does not permit it).  This patch removes the short GI
support bitfield from the global iwl_ht_info struct and properly uses
per-station HT capabilities during rate selection.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Daniel C Halperin
2009-08-13 13:30:58 -07:00
committed by John W. Linville
parent 28bd723bba
commit 28e6f48953
3 changed files with 15 additions and 63 deletions
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4
drivers/net/wireless/iwlwifi/iwl-dev.h
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@@ -508,7 +508,6 @@ struct iwl_ht_info {
u8 supported_chan_width;
u8 sm_ps;
u8 is_green_field;
u8 sgf; /* HT_SHORT_GI_* short guard interval */
struct ieee80211_mcs_info mcs;
/* BSS related data */
u8 extension_chan_offset;
@@ -728,9 +727,6 @@ struct iwl_dma_ptr {
size_t size;
};
#define HT_SHORT_GI_20MHZ (1 << 0)
#define HT_SHORT_GI_40MHZ (1 << 1)
#define IWL_CHANNEL_WIDTH_20MHZ 0
#define IWL_CHANNEL_WIDTH_40MHZ 1